Leases - Supplemental Statement of Operations Information (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
May 31, 2026 |
May 31, 2025 |
May 31, 2024 |
|
| Lessee, Lease, Description [Line Items] | |||
| Non-cash lease expense | $ 2,345 | $ 2,632 | $ 2,549 |
| Income Statement Location [Axis]: us-gaap:CostOfGoodsAndServicesSold | |||
| Lessee, Lease, Description [Line Items] | |||
| Non-cash lease expense | 711 | 896 | 866 |
| Income Statement Location [Axis]: us-gaap:GeneralAndAdministrativeExpense | |||
| Lessee, Lease, Description [Line Items] | |||
| Non-cash lease expense | 853 | 1,155 | 1,327 |
| Income Statement Location [Axis]: us-gaap:ResearchAndDevelopmentExpense | |||
| Lessee, Lease, Description [Line Items] | |||
| Non-cash lease expense | 522 | 372 | 195 |
| Income Statement Location [Axis]: us-gaap:SellingAndMarketingExpense | |||
| Lessee, Lease, Description [Line Items] | |||
| Non-cash lease expense | 161 | 167 | 161 |
| Income Statement Location [Axis]: ango:AcquisitionRestructuringAndOtherItemsNet | |||
| Lessee, Lease, Description [Line Items] | |||
| Non-cash lease expense | $ 98 | $ 42 | $ 0 |